The most essential part in the improvement of graphite electrodes is the grade of petroleum coke utilized, as higher grades of the petroleum coke create higher quality cathodes. Other than petroleum coke, a few different components can affect the nature of the graphite anode and its capacity to convey a current, for example: length, measurement, mass thickness, resistance, and porosity. For instance, lower grades of coke don’t allow an electric current to travel as effectively.
There are two distinct kinds of graphite electrodes on the market. One write is called “SDGE,” which means ‘small diameter electrodes.’ These terminals are normally utilized for liquefying scrap metal and other crude materials and are used in Electric Arc Furnaces (EAF). These electrodes convey form an arc that makes a curve between the anode and the crude material, making it soften.
The other common electrode type is the “LDGE” or large diameter graphite electrode. These sorts of graphite electrodes are usually utilized for steel liquefying in extensive EAF’s requiring high-temperature and high-force applications. Unlike small diameter electrodes, whose current limit capacity ranges from 60,000 to 160,000 amps, the present limit of LDGEs ranges from 15,000 and 70,000 amps.
SDGE versus LDGE
SDGEs are typically fabricated from petroleum coke, no matter what the grade. Some SDGEs are fabricated with high-grade coke, others with a lower grade. Truth be told, some SDGEs are a mix of a few different grades. However, LDGEs are generally produced with premium, 100% high review needle coke.
There are distinctive grades for both types of electrodes, for example:
• HP – High Power
• HD – High Density
• UHP – Ultra High Power
• SHP – Super High Power
There are a few additional grades including regular power (RP), normal power (NP), and medium power or (MP). Nonetheless, these evaluations are rarely used.
